CN217207389U - Nylon half-retainer positioning tool - Google Patents
Nylon half-retainer positioning tool Download PDFInfo
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- CN217207389U CN217207389U CN202220277836.6U CN202220277836U CN217207389U CN 217207389 U CN217207389 U CN 217207389U CN 202220277836 U CN202220277836 U CN 202220277836U CN 217207389 U CN217207389 U CN 217207389U
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- retainer
- bearing inner
- positioning
- bearing
- inner hole
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Abstract
The utility model belongs to the technical field of bearing manufacturing, and relates to a nylon half-holder positioning tool, which comprises a positioning tool body and a bearing inner hole positioning shaft, wherein the bearing inner hole positioning shaft is arranged at the rotation center of the positioning tool body and vertically extends upwards so as to position a bearing inner ring; the retainer positioning step is coaxially arranged on the outer ring of the bearing inner hole positioning shaft and used for positioning the half retainer when in use; the bearing inner ring limiting groove is formed between the bearing inner hole positioning shaft and the retainer positioning step; the holder placing plane is arranged on the outer ring of the holder positioning step to support the holder when in use; the height of the retainer placing plane in the vertical direction is larger than that of the bearing inner ring limiting groove in the vertical direction. The positioning tool can effectively improve the working efficiency and reduce the production of defective products.
Description
Technical Field
The utility model belongs to the technical field of the bearing is made, a nylon half holder location frock is related to.
Background
In the current manual assembly production of the bearing, aiming at the press mounting of a conventional nylon retainer, the conventional nylon retainer is manually divided into balls and then placed on a ball pocket hole of the nylon retainer, and because the ball-mounting guide circular arcs at the ball pocket hole inlet of the conventional nylon retainer are uniformly distributed on two sides of the central diameter, the center of a steel ball can be ensured to be arranged at the central diameter of the retainer, and then the coaxiality of the retainer and an inner hole of the bearing is ensured. Compared with the conventional nylon retainer ball pocket hole, the thickness of the nylon half retainer is reduced by half, the existing press fitting mode is adopted, the steel ball is not easy to place in the center diameter position of the retainer, the retainer and the inner hole of the bearing cannot be coaxial, the consistency of the steel ball entering the ball pocket hole in the press fitting process cannot be guaranteed, the bearing after press fitting is blocked, and the inner and outer ring roller ways of the bearing can be scratched and the nylon retainer is damaged in serious cases.
The existing countermeasure measures are: the method comprises the steps of horizontally placing a nylon half-retainer, placing a bearing on the retainer horizontally in a visual mode after ball separation, enabling a steel ball to be placed in the center diameter position of the retainer as far as possible to ensure that the retainer and an inner hole of the bearing are coaxial, and then forcibly pressing the end face of the bearing in the vertical direction to ensure the consistency of the steel ball entering a ball pocket. But this mode receives the subjective influence degree of staff great, and has reduced work efficiency, and the bearing card death rate after the pressure equipment is higher.
Disclosure of Invention
The utility model provides an above-mentioned problem, a nylon half holder location frock is provided, and this location frock can effectively improve work efficiency to can reduce the production of defective products.
According to the technical scheme of the utility model: the utility model provides a nylon half holder location frock, includes location frock body, its characterized in that: the bearing inner hole positioning shaft is arranged at the rotation center of the positioning tool body and vertically extends upwards to position the bearing inner ring;
the retainer positioning step is coaxially arranged on the outer ring of the bearing inner hole positioning shaft and used for positioning the half retainer when in use;
the bearing inner ring limiting groove is formed between the bearing inner hole positioning shaft and the retainer positioning step;
the holder placing plane is arranged on the outer ring of the holder positioning step to support the holder when in use;
the height of the retainer placing plane in the vertical direction is larger than that of the bearing inner ring limiting groove in the vertical direction.
As a further improvement, the upper end of the bearing inner hole positioning shaft is provided with a chamfer.
As a further improvement, the diameter of the bearing inner hole positioning shaft is smaller than the inner hole diameter of the sealing deep groove ball bearing by 0.1-0.2 mm.
As a further improvement, the height difference between the planes of the bearing inner ring limiting groove and the retainer is 0.3-0.5 mm.
As a further improvement, the height of the bearing inner hole positioning shaft is less than that of the sealing deep groove ball bearing.
As a further improvement, the height H1 of holder location step is greater than the chamfer height of half holder, and the top surface of holder location step and the bottom surface interval of bearing inner race spacing groove are less than the width of sealed deep groove ball bearing inner race dust groove.
As a further improvement of the utility model, the retainer is placed planar diameter and is less than the notch diameter of sealed deep groove ball bearing outer lane dust groove.
The technical effects of the utility model reside in that: the utility model discloses the frock can guarantee that the holder pressure equipment once targets in place when pressure equipment nylon half holder, prevents that the eccentric and condition such as lead to the bearing card to die from appearing in the holder, improves the yields and the work efficiency of product.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the a part of the retainer positioning step of the present invention.
Fig. 3 is a schematic view of the positioning of the nylon half-holder of the present invention.
Fig. 4 is a press-fitting process diagram of the nylon half-holder of the present invention.
Fig. 5 is a press-fitting effect diagram of the nylon half-holder of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In the drawings 1-5, the bearing comprises a bearing inner hole positioning shaft 1, a retainer positioning step 2, a bearing inner ring limiting groove 3, a retainer placing plane 4, a nylon half retainer 5, a sealed deep groove ball bearing 6 and the like.
As shown in fig. 1, the utility model relates to a half holder location frock of nylon, including location frock body, still include bearing hole location axle 1, it sets up in the centre of rotation of location frock body and vertical upwards extends to the inner circle of the sealed deep groove ball bearing 6 of location.
The outer ring of the bearing inner hole positioning shaft 1 is coaxially provided with a retainer positioning step 2 for positioning a half retainer 5 when in use.
A bearing inner ring limiting groove 3 is formed between the bearing inner hole positioning shaft 1 and the retainer positioning step 2.
The outer ring of the retainer positioning step 2 is provided with a retainer placing plane 4 to support the retainer when in use.
The height of the retainer placing plane 4 in the vertical direction is greater than that of the bearing inner ring limiting groove 3 in the vertical direction.
The upper end of the bearing inner hole positioning shaft 1 is provided with a chamfer.
The diameter phi D1 of the bearing inner hole positioning shaft 1 is 0.1-0.2 mm smaller than the diameter of the inner hole of the sealed deep groove ball bearing 6, and the height of the bearing inner hole positioning shaft 1 is H2.
The height difference between the bearing inner ring limiting groove 3 and the retainer placing plane 4 is 0.3-0.5 mm.
The height of the bearing inner hole positioning shaft 1 is smaller than that of the sealed deep groove ball bearing 6.
The height H1 of the retainer positioning step 2 is greater than the chamfer height of the half retainer 5, and the distance between the top surface of the retainer positioning step 2 and the bottom surface of the bearing inner ring limiting groove 3 is less than the width of the dust-proof groove of the inner ring of the sealed deep groove ball bearing 6.
The diameter of the retainer placing plane 4 is smaller than the diameter of a notch of a dust-proof groove of the outer ring of the sealed deep groove ball bearing 6.
The utility model discloses a concrete implementation mode as follows during operation: as shown in fig. 3, firstly, the nylon half-holder 5 is placed on the holder positioning step 2; the height H1 of the retainer positioning step 2 should be greater than the chamfer height of the retainer, and the diameter D3 should be slightly smaller than the inner diameter of the retainer so as to ensure that the nylon semi-retainer does not shake on the positioning step, and meanwhile, the retainer positioning step 2 should have good coaxiality with the bearing inner hole positioning shaft 1.
Then, as shown in fig. 4, the bearing after ball separation is placed on the retainer through the bearing inner hole positioning shaft, and the ball is aligned with the ball pocket hole; the bearing inner hole positioning shaft 1 is in clearance fit with the bearing inner hole, the clearance is not too large to ensure good coaxiality, the recommended clearance is 0.1-0.2 mm, the retainer and the bearing inner hole can be further ensured to be coaxial, and the steel ball is arranged at the central diameter position of the retainer; in addition, the upper end of the bearing inner hole positioning shaft 1 is required to be chamfered so as to be convenient to assemble with a bearing.
Finally, as shown in fig. 5, the sealed deep groove ball bearing 6 is pressed downwards, the inner hole positioning shaft 1 is guided, the consistency of the steel ball entering the ball pocket can be ensured without forcing the pressing downwards in the vertical direction, the end surface of the inner ring is contacted with the inner ring limiting groove 3, the nylon half retainer 5 automatically leaves the retainer positioning step 2, and the press fitting is completed; the diameter dimension PhiD 2 of the retainer positioning step 2 is larger than the diameter of the groove opening of the dust-proof groove of the bearing inner ring, and the height dimension H1+ delta H is smaller than the width of the dust-proof groove of the bearing inner ring to prevent interference; the diameter dimension phi D4 of the retainer placing plane 4 is smaller than the diameter of the notch of the dust-proof groove of the bearing outer ring so as to prevent interference; the height of the bearing inner hole positioning shaft 1 is smaller than that of the bearing so as to ensure that the bearing end face is continuously stressed in the pressing process.
Claims (7)
1. The utility model provides a nylon half holder location frock, includes location frock body, its characterized in that: the positioning tool further comprises a bearing inner hole positioning shaft (1) which is arranged at the rotation center of the positioning tool body and vertically extends upwards so as to position the bearing inner ring;
the retainer positioning step (2) is coaxially arranged on the outer ring of the bearing inner hole positioning shaft (1) and is used for positioning the half retainer (5) when in use;
the bearing inner ring limiting groove (3) is formed between the bearing inner hole positioning shaft (1) and the retainer positioning step (2);
a retainer placing plane (4) which is arranged at the outer ring of the retainer positioning step (2) to support the retainer when in use;
the height of the retainer placing plane (4) in the vertical direction is greater than that of the bearing inner ring limiting groove (3) in the vertical direction.
2. The nylon half-cage positioning tool set forth in claim 1, wherein: the upper end of the bearing inner hole positioning shaft (1) is provided with a chamfer.
3. The nylon half-cage positioning tool set forth in claim 1, wherein: the diameter of the bearing inner hole positioning shaft (1) is 0.1-0.2 mm smaller than the diameter of the inner hole of the sealing deep groove ball bearing (6).
4. The nylon half-cage positioning tool set forth in claim 1, wherein: the height difference between the bearing inner ring limiting groove (3) and the retainer placing plane (4) is 0.3-0.5 mm.
5. The nylon half-cage positioning tool set forth in claim 1, wherein: the height of the bearing inner hole positioning shaft (1) is smaller than that of the sealed deep groove ball bearing (6).
6. The nylon half-cage positioning tool set forth in claim 1, wherein: the height H1 of the retainer positioning step (2) is greater than the chamfering height of the half retainer (5), and the distance between the top surface of the retainer positioning step (2) and the bottom surface of the bearing inner ring limiting groove (3) is smaller than the width of the dust-proof groove of the inner ring of the sealed deep groove ball bearing (6).
7. The nylon half-cage positioning tool set forth in claim 1, wherein: the diameter of the retainer placing plane (4) is smaller than the diameter of a notch of an outer ring dust-proof groove of the sealed deep groove ball bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220277836.6U CN217207389U (en) | 2022-02-11 | 2022-02-11 | Nylon half-retainer positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220277836.6U CN217207389U (en) | 2022-02-11 | 2022-02-11 | Nylon half-retainer positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217207389U true CN217207389U (en) | 2022-08-16 |
Family
ID=82796472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220277836.6U Active CN217207389U (en) | 2022-02-11 | 2022-02-11 | Nylon half-retainer positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217207389U (en) |
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2022
- 2022-02-11 CN CN202220277836.6U patent/CN217207389U/en active Active
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